High-Energy shells were missiles used by both Armored Assault Tanks of the Separatist Droid Army[2] and TX-130 Saber-class fighter tanks of the Grand Army of the Republic.[1]
Sources
- Star Wars: Legion — TX-130 Saber-class Fighter Tank Unit Expansion Card: High-Energy Shells Reissued in AAT Trade Federation Battle Tank, LAAT/le Patrol Transport, and NR-N99 Persuader-class Tank Droid Unit Expansions, and Separatist Invasion Battle Force Starter Set (First mentioned, simultaneous with TX-130 Saber-class Fighter Tank Unit Expansion)
Patrolling the Skies on Fantasy Flight Games' official website (backup link)